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Projects => Build Reports => Audio/Video Demos => Topic started by: JakeFuzz on June 12, 2011, 12:17:44 AM

Title: Sunking Diode Test
Post by: JakeFuzz on June 12, 2011, 12:17:44 AM
Here it is. Sorry for the bad playing, just one of those days and not feeling it at all. Ran out of my 10 minutes before giving my opinions. The LM313H is the best sounding. The two germanium diodes (1n60 and 1n34) are much more clean, but have a fizziness to the breakup. The BAT41 and the LM313H are very similar with the BAT41 being quieter and more compressed sounding. The BAT46 sounds like the BAT41 but louder and cleaner. The LM's stay! As mentioned the Sunking uses NE5532P's in both positions, uses 6.8n instead of the 3.9n cap, nichicon micro audio grade capacitors, metal film caps in all but two positions and epcos box or panasonic films in the non-polar positions.

Hope this helps everyone out in there diode selections. Thanks Tubeman for the hot tip on these diodes they really do sound good.

Title: Re: Sunking Diode Test
Post by: slimtriggers on June 12, 2011, 02:30:53 AM
Great demo!  I liked the LM313h the best, but the BAT46 was a close second IMHO.  Thanks for doing this 8)
Title: Re: Sunking Diode Test
Post by: Haberdasher on June 12, 2011, 02:38:07 AM
I couldn't tell much difference between the BAT41 and LM313h with my lil AKG headphones, but I assume it's more evident if you're in the room.  Anyway, I though they both sounded good.  Thanks for the demo!
Title: Re: Sunking Diode Test
Post by: k.rock! on June 12, 2011, 02:59:08 AM
Quote from: slimtriggers on June 12, 2011, 02:30:53 AM
Great demo!  I liked the LM313h the best, but the BAT46 was a close second IMHO.  Thanks for doing this 8)

Haha I was LITERALLY writing the same thing a few hours ago but had to lock my phone and forgot to hit Post!

Very cool demo Paul, thanks a lot! I do think the LMs sound best here


-Kaleb
Title: Re: Sunking Diode Test
Post by: bigmufffuzzwizz on June 12, 2011, 08:30:20 PM
This is an awesome demo! The sunking really is a great sounding pedal. Personally I think all the diodes you tryed sound great and could be good candidates for this pedal!
Title: Re: Sunking Diode Test
Post by: Analog Design Audio on June 23, 2011, 06:55:08 AM
great demo very helpfull


Really enjoy listen to Floyd Track :)

Michael
Pink Floyd
Title: Re: Sunking Diode Test
Post by: nzCdog on June 28, 2011, 04:28:59 AM
cool demo and nice playin
Title: Re: Sunking Diode Test
Post by: JakeFuzz on July 08, 2011, 01:54:04 AM
I swapped in two TL072's for the opamps and found that they sound better than the NE5532's! More sustain and an even attack response. I might just play around with more opamps to see what I can find.
Title: Re: Sunking Diode Test
Post by: jimmybjj on July 08, 2011, 02:11:51 AM
Thanks, your demo's are awesome! Where do you buy the lm313h's?
Title: Re: Sunking Diode Test
Post by: jtn191 on July 08, 2011, 02:56:56 AM
I bought some from Talon http://www.talonix.com/shop/item.aspx?itemid=8191
haven't tried em yet
Title: Re: Sunking Diode Test
Post by: JakeFuzz on July 09, 2011, 06:48:42 AM
Yeah I bought mine from Talon. You have to put a little dielectric material to separate the outer casings from shorts, the case is connected to one side of the P-N junction. I am amazed at how much the TL072's changed the sound, I like them much better. I will have to try 4558's maybe tomorrow.
Title: Re: Sunking Diode Test
Post by: jtn191 on July 09, 2011, 09:29:21 AM
so what'd you use to insulate it , Jake? And does the polarity of the LM313s matter?
Title: Re: Sunking Diode Test
Post by: JakeFuzz on July 09, 2011, 05:15:50 PM
Quote from: jtn191 on July 09, 2011, 09:29:21 AM
so what'd you use to insulate it , Jake? And does the polarity of the LM313s matter?

Haha, you're going laugh but I just cut a small square from an index card and stuck it between them. I cut the leads pretty short so there was a lot of spring force between the two metal casings, enough to hold the card in by friction. If i had to do it again (or maybe I will in the future) I would use maybe a liquid rubberize (the stuff they use for tool handles) or heat shrink.

Yeah the polarity matters. It doesn't necessarily need to match the silkscreen but they should be facing the same direction (on the physical layout not the actual circuit). There should be a little tab denoting one end of the diode, just make sure those are facing in the same direction when you put them in. 
Title: Re: Sunking Diode Test
Post by: Hirti on July 11, 2011, 12:30:17 PM
 Thanks for the demo, the LM313H do sound really great and I was tempted to order some of them (especially since they are pretty cheap at Talon) but 19$ shipping to Austria? No, thank you. :o
Title: Re: Sunking Diode Test
Post by: JakeFuzz on August 09, 2011, 10:11:57 PM
Just swapped in some TLE2072's  :o. Best overdrive i've ever heard that isn't coming from an amp.

Also put a BB OPA2107 in my Timmy, amazing.
Title: Re: Sunking Diode Test
Post by: Haberdasher on August 10, 2011, 02:12:27 PM
Quote from: JakeFuzz on August 09, 2011, 10:11:57 PM
Just swapped in some TLE2072's  :o. Best overdrive i've ever heard that isn't coming from an amp.

Also put a BB OPA2107 in my Timmy, amazing.

Oh sweet, you tried the TLE's.  I thought they sounded pretty good too.

I'm using BAT46 in the sunking right now.  I like them enough to where I doubt if I make a change anytime soon.  BAT41 sounded good too.  I tried mosfet and led's but came away kind of "meh".
Title: Re: Sunking Diode Test
Post by: JakeFuzz on August 10, 2011, 05:23:23 PM
Yeah the BAT46 do sound really good, in fact there isn't enough difference between them and the LM's to really justify that huge price differential. Those TLE amps are amazing, I wonder if Tayda or whoever would stock them if I asked because I would use those in place of the TL072 any day. I turn on my Sunking now and just can't believe that sound is coming out of a pedal.
Title: Re: Sunking Diode Test
Post by: aflynt on August 10, 2011, 05:39:44 PM
Which version of the TLE2072 are you using IP, CP, AIP, or ACP? Looks like IP means + 85 C Max. Temp., CP means + 70 C Max. Temp., A means 3.5 mV input offset and non-A is 6 mV input offset. Mouser has all 4 varieties in stock.

-Aaron
Title: Re: Sunking Diode Test
Post by: masterlk on August 10, 2011, 05:42:09 PM
Can you post a link from where you got them?




Quote from: JakeFuzz on August 10, 2011, 05:23:23 PM
Those TLE amps are amazing, I wonder if Tayda or whoever would stock them if I asked because I would use those in place of the TL072 any day. I turn on my Sunking now and just can't believe that sound is coming out of a pedal.
Title: Re: Sunking Diode Test
Post by: Haberdasher on August 10, 2011, 05:50:04 PM
Quote from: masterlk on August 10, 2011, 05:42:09 PM
Can you post a link from where you got them?

Quote from: JakeFuzz on August 10, 2011, 05:23:23 PM
Those TLE amps are amazing, I wonder if Tayda or whoever would stock them if I asked because I would use those in place of the TL072 any day. I turn on my Sunking now and just can't believe that sound is coming out of a pedal.
http://www.mouser.com/ProductDetail/Texas-Instruments/TLE2072CP/?qs=sGAEpiMZZMtCHixnSjNA6CumnoLUElGjlkuqVFJHOVU%3d

Quote from: aflynt on August 10, 2011, 05:39:44 PM
Which version of the TLE2072 are you using IP, CP, AIP, or ACP? Looks like IP means + 85 C Max. Temp., CP means + 70 C Max. Temp., A means 3.5 mV input offset and non-A is 6 mV input offset. Mouser has all 4 varieties in stock.

-Aaron

I'm using the CPs, can't speak for JakeFuzz
Title: Re: Sunking Diode Test
Post by: JakeFuzz on August 10, 2011, 06:05:07 PM
Yeah I am using the CP's as well.
Title: Re: Sunking Diode Test
Post by: aflynt on August 10, 2011, 06:25:46 PM
Thanks. Ordering some TC2072CPs and BAT46s right now. :)

-Aaron
Title: Re: Sunking Diode Test
Post by: masterlk on August 10, 2011, 07:41:45 PM
Thanks for the link Haberdasher!
Title: Re: Sunking Diode Test
Post by: jtn191 on August 10, 2011, 10:06:34 PM
I just did a (far from conclusive) test on my own with 1N60s, LM313Hs, and asymm 1N60->LM313H using TL072 op amps, a F. Blues Jr and a strat w/ lace sensor golds.

IMO:
I liked the recorded sound through an SM57 of 1N60s the best--they maintained a certain robustness and roundness of the low and mid range; the LM313Hs had less distortion/gain sound at the same gain settings--and in my situation sounded a little more "brittle" and pedal OD-like. They did seem a little more "open" and transparent (who knows what that even means anymore  ???) sitting in the same room--the feeling I got while playing through them. The difference between asymm and 2x of the same kind wasn't very noticeable; I'd say any extra tubey-ness was due to a placebo-like effect. Anywho, I'll try some more diodes/LEDs and asymm configurations

btw, I touched the metal can of one of the LM313s with a sweaty finger and it made a short squeal then seemed like there was less gain. Maybe it was static?  :-\
Title: Re: Sunking Diode Test
Post by: Haberdasher on August 11, 2011, 12:22:18 PM
Quote from: aflynt on August 10, 2011, 06:25:46 PM
Thanks. Ordering some TC2072CPs and BAT46s right now. :)

-Aaron
Mone sounds pretty good with those components.  I hope you like it too.

Quote from: masterlk on August 10, 2011, 07:41:45 PM
Thanks for the link Haberdasher!
Anytime!
Title: Re: Sunking Diode Test
Post by: aflynt on August 13, 2011, 08:51:21 PM
Got the TC2072CPs and BAT46s in today. Popped them into my Sunking and... Holy freaking [INSERT DEITY OF CHOICE HERE]. The thing DOES sound incredible with those components!

-Aaron
Title: Re: Sunking Diode Test
Post by: Hirti on August 14, 2011, 04:43:05 PM
You guys make curious how these components sound.. guess I also have to order some of those. :D
Title: Re: Sunking Diode Test
Post by: Haberdasher on August 17, 2011, 04:24:03 AM
Quote from: Hirti on August 14, 2011, 04:43:05 PM
You guys make curious how these components sound.. guess I also have to order some of those. :D
Cool, let us know if you like it.